//:C01:BadException.cpp {-bor}
#include <exception>    // For std::bad_exception
#include <iostream>
#include <cstdio>
using namespace std;

// Exception classes:
class A {};
class B {};

// terminate() handler
void my_thandler() {
    cout << "terminate called" << endl;
    exit(0);
}

// unexpected() handlers
void my_uhandler1() { throw A(); }
void my_uhandler2() { throw; }

// If we embed this throw statement in f or g.
// the compiler detects the violation and reports
// an error, so we put it in its own function.
void f() throw(A) { t(); }
void g() throw(A, bad_exception) { t();}

int main(void) {
    set_terminate(my_thandler);
    set_unexpected(my_uhandler1);
    try {
      f();  
    } catch(A &) {
        cout << "caught an A from f" << endl;
    }

    set_unexpected(my_handler2);
    try {
      g();
    } catch(bad_exception &) {
        cout << "caught a bad_exception from g" << endl;
    }

    try {
      f();
    } catch(...) {
        cout << "This will never print" << endl;
    }
}